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We present a novel deep-learning-based method to cluster words in documents which we apply to detect and recognize tables given the OCR output. We interpret table structure bottom-up as a graph of relations between pairs of words (belonging…

Machine Learning · Computer Science 2024-05-24 Marek Polewczyk , Marco Spinaci

Tensor ring (TR) decomposition is an efficient approach to discover the hidden low-rank patterns for higher-order tensors, and streaming tensors are becoming highly prevalent in real-world applications. In this paper, we investigate how to…

Numerical Analysis · Mathematics 2023-07-04 Yajie Yu , Hanyu Li

Finding dense substructures in a graph is a fundamental graph mining operation, with applications in bioinformatics, social networks, and visualization to name a few. Yet most standard formulations of this problem (like clique, quasiclique,…

Social and Information Networks · Computer Science 2015-03-10 Ahmet Erdem Sariyuce , C. Seshadhri , Ali Pinar , Umit V. Catalyurek

We present a series of algorithms in tensor networks for anomaly detection in datasets, by using data compression in a Tensor Train representation. These algorithms consist of preserving the structure of normal data in compression and…

Machine Learning · Computer Science 2026-05-05 Alejandro Mata Ali , Aitor Moreno Fdez. de Leceta , Jorge López Rubio

Social networks, characterized by community structures, often rely on nodes called structural hole spanners to facilitate inter-community information dissemination. However, the dynamic nature of these networks, where spanner nodes may be…

Social and Information Networks · Computer Science 2025-08-05 Arindam Khanda , Satyaki Roy , Prithwiraj Roy , Sajal K. Das

With the spread of DeepFake techniques, this technology has become quite accessible and good enough that there is concern about its malicious use. Faced with this problem, detecting forged faces is of utmost importance to ensure security…

Computer Vision and Pattern Recognition · Computer Science 2022-09-29 Gustavo Cunha Lacerda , Raimundo Claudio da Silva Vasconcelos

Change detection is of fundamental importance when analyzing data streams. Detecting changes both quickly and accurately enables monitoring and prediction systems to react, e.g., by issuing an alarm or by updating a learning algorithm.…

Machine Learning · Computer Science 2024-01-17 Marco Heyden , Edouard Fouché , Vadim Arzamasov , Tanja Fenn , Florian Kalinke , Klemens Böhm

The growing popularity of social media platforms has simplified the creation and distribution of news articles but also creates a conduit for spreading fake news. In consequence, the need arises for effective context-aware fake news…

Artificial Intelligence · Computer Science 2023-02-06 Ciprian-Octavian Truică , Elena-Simona Apostol , Panagiotis Karras

In this paper, we propose a turbo receiver for joint activity detection and data decoding in grant-free massive random access, which iterates between a detector and a belief propagation (BP)-based channel decoder. Specifically, responsible…

Signal Processing · Electrical Eng. & Systems 2021-07-21 Xinyu Bian , Yuyi Mao , Jun Zhang

Detection Transformer (DETR) and its variants show strong performance on object detection, a key task for autonomous systems. However, a critical limitation of these models is that their confidence scores only reflect semantic uncertainty,…

Computer Vision and Pattern Recognition · Computer Science 2026-03-03 Yutong Yang , Katarina Popović , Julian Wiederer , Markus Braun , Vasileios Belagiannis , Bin Yang

Detecting and characterizing dense subgraphs (tight communities) in social and information networks is an important exploratory tool in social network analysis. Several approaches have been proposed that either (i) partition the whole…

Social and Information Networks · Computer Science 2012-10-12 Marco Pellegrini , Filippo Geraci , Miriam Baglioni

Financial fraud has been growing exponentially in recent years. The rise of cryptocurrencies as an investment asset has simultaneously seen a parallel growth in cryptocurrency scams. To detect possible cryptocurrency fraud, and in…

Methodology · Statistics 2025-10-08 Andreas Anastasiou , Ivor Cribben

We propose a dense tensor accelerator called VectorMesh, a scalable, memory-efficient architecture that can support a wide variety of DNN and computer vision workloads. Its building block is a tile execution unit~(TEU), which includes…

Distributed, Parallel, and Cluster Computing · Computer Science 2021-11-29 Yu-Sheng Lin , Wei-Chao Chen. Chia-Lin Yang , Shao-Yi Chien

Nowadays the deep learning technology is growing faster and shows dramatic performance in computer vision areas. However, it turns out a deep learning based model is highly vulnerable to some small perturbation called an adversarial attack.…

Computer Vision and Pattern Recognition · Computer Science 2020-03-06 Seungju Cho , Tae Joon Jun , Mingu Kang , Daeyoung Kim

Tensor networks provide a powerful framework for compressing multi-dimensional data. The optimal tensor network structure for a given data tensor depends on both data characteristics and specific optimality criteria, making tensor network…

Computational Engineering, Finance, and Science · Computer Science 2026-03-23 Zheng Guo , Aditya Deshpande , Brian Kiedrowski , Xinyu Wang , Alex Gorodetsky

Mining social media content for tasks such as detecting personal experiences or events, suffer from lexical sparsity, insufficient training data, and inventive lexicons. To reduce the burden of creating extensive labeled data and improve…

Computation and Language · Computer Science 2020-04-23 Payam Karisani , Joyce C. Ho , Eugene Agichtein

To properly contrast the Deepfake phenomenon the need to design new Deepfake detection algorithms arises; the misuse of this formidable A.I. technology brings serious consequences in the private life of every involved person.…

Computer Vision and Pattern Recognition · Computer Science 2021-08-12 Oliver Giudice , Luca Guarnera , Sebastiano Battiato

Dynamic mode decomposition has emerged as a leading technique to identify spatiotemporal coherent structures from high-dimensional data, benefiting from a strong connection to nonlinear dynamical systems via the Koopman operator. In this…

Systems and Control · Computer Science 2017-12-01 Zhe Bai , Eurika Kaiser , Joshua L. Proctor , J. Nathan Kutz , Steven L. Brunton

Electricity theft detection issue has drawn lots of attention during last decades. Timely identification of the electricity theft in the power system is crucial for the safety and availability of the system. Although sustainable efforts…

Computer Vision and Pattern Recognition · Computer Science 2018-05-25 Bo Li , Kele Xu , Xiaoyan Cui , Yiheng Wang , Xinbo Ai , Yanbo Wang

Multimodal misinformation increasingly mixes realistic im-age edits with fluent but misleading text, producing persuasive posts that are difficult to verify. Existing systems usually rely on a single evidence source. Content-based detectors…

Computer Vision and Pattern Recognition · Computer Science 2026-02-17 Gagandeep Singh , Samudi Amarasinghe , Priyanka Singh